TeleGeography: Ethernet VPLS, EoDWDM interest grows, while IP/VPN expansion dips
HISTORICAL SPACE FREQUENCIES. The first satellite to orbit the Earth was Sputnik 1, launched by the Soviets in October 1957. It carried two radio beacons on frequencies of 20.005 and 40.01 MHz. The Soviets continued to use frequencies around 20 MHz and even some around 15 MHz for many subsequent missions. This tends to be used for uplinks of the satellites that downlink in the 137 - 138 MHz band. 2  149.95 - 150.05 MHz. 3  This is used by satellites providing positioning, time and frequency services, by ionospheric research and other satellites.
Though the satellite microwave signals depending on band, region and up or downlink are anything from 2.2GHz to 20GHz, typical Sky Digital signals on the Downlink to your disk are 10.7GHz to 12.6Ghz. On the coax cable to your receiver they are 950MHz to 2000MHz (0.95 to 2GHz).